531738625 has 16 divisors (see below), whose sum is σ = 723939840. Its totient is φ = 386718000.

The previous prime is 531738619. The next prime is 531738637. The reversal of 531738625 is 526837135.

It is a de Polignac number, because none of the positive numbers 2^k-531738625 is a prime.

It is a super-3 number, since 3×531738625³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191985 + ... + 194734.

It is an arithmetic number, because the mean of its divisors is an integer number (45246240).

Almost surely, 2^531738625 is an apocalyptic number.

531738625 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

531738625 is a deficient number, since it is larger than the sum of its proper divisors (192201215).

531738625 is a wasteful number, since it uses less digits than its factorization.

531738625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 386745 (or 386735 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 531738625 is about 23059.4584715253. The cubic root of 531738625 is about 810.1511809466.

The spelling of 531738625 in words is "five hundred thirty-one million, seven hundred thirty-eight thousand, six hundred twenty-five".